// js和IOS通讯 https://github.com/marcuswestin/WebViewJavascriptBridge
function setupWebViewJavascriptBridge(callback) {
    if (window.WebViewJavascriptBridge) {
        return callback(window.WebViewJavascriptBridge);
    }
    if (window.WVJBCallbacks) {
        return window.WVJBCallbacks.push(callback);
    }
    window.WVJBCallbacks = [callback];
    let WVJBIframe = document.createElement("iframe");
    WVJBIframe.style.display = "none";
    WVJBIframe.src = "https://__bridge_loaded__";
    document.documentElement.appendChild(WVJBIframe);
    setTimeout(() => {
        document.documentElement.removeChild(WVJBIframe);
    }, 0);
}

export default {
    callhandler(name, data, callback) {
        // 调用IOS提供的方法
        setupWebViewJavascriptBridge(function(bridge) {
            bridge.callHandler(name, data, callback);
        });
    },
    registerhandler(name, callback) {
        setupWebViewJavascriptBridge(function(bridge) {
            bridge.registerHandler(name, function(data, responseCallback) {
                callback(data, responseCallback);
            });
        });
    }
};
